912 fuel pump replacement
in 912 / 914 Technical Questions
14 years ago
-
by jim reader » 12 years ago
I've been tolerating the erratic fuel pressure on my 912uls since I got it in 2009. The pressure recently dropped to zero, the engine kept running fine, turning on the boost pump gradually brought it up to 0.2 bar. When it's normal it reads about 0.38 bar, with or without the boost pump.
So I'm thinking of trying a new pump. From what I can determine the new part number is 893 110.
Does anyone have a list of model numbers of the fuel pumps that have been used in the last 5 years?
-
by Roger Lee » 12 years ago
Hi Jim,
None of the old pumps are around any more. Typically it isn't the fuel pump that causes a fluctuating reading. It is either the fuel pressure sender (95% of the time) or you need a fuel pressure dampening valve inline to dampen the fuel pressure pulsation. To prove it to yourself it isn't the pump buy an inexpensive 0-10 psi gauge and get some cooper tubing and make a fuel pressure test gauge. Start the engine and see what's not right.Fuelpressuredampener.jpg (You do not have access to download this file.)
Roger Lee
LSRM-A & Rotax Instructor & Rotax IRC
Tucson, AZ Ryan Airfield (KRYN)
520-349-7056 Cell
-
by RICHARD DUPONT » 12 years ago
Hi Lee
my fuel pump are Pierburg 996 593,i call lockwood for sb and the sellers offer a remplacement for 98$
but the fuel pump need the get a specific number serial (bing)
after i check my serial number i relize i have a different fuel pump
the seller told me, thats the best one they never made keep this one
Is it affect by the SB because on the video rotax they start with fuel pump bing
i am confuise
Thank you
You do not have permissions to reply to this topic.
Related Topics